/* ============================================
   LOGIN SCREEN
   ============================================ */

.login-screen {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    z-index: 2;
}

/* Language Switcher (Top Corner) */
.lang-switcher {
    position: absolute;
    top: 24px;
    right: 24px;
    display: flex;
    gap: 4px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 4px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-soft);
    z-index: 10;
}

[dir="rtl"] .lang-switcher {
    right: auto;
    left: 24px;
}

.lang-btn {
    padding: 8px 14px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    border-radius: var(--radius-full);
    transition: all var(--trans-fast);
    letter-spacing: 0.5px;
}

.lang-btn.active {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-light) 100%);
    color: var(--text-primary);
    box-shadow: 0 2px 12px var(--accent-glow);
}

.lang-btn:not(.active):hover {
    color: var(--text-primary);
    background: var(--bg-light);
}

/* Login Container */
.login-container {
    width: 100%;
    max-width: 460px;
    animation: fadeInUp 0.6s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Login Card */
.login-card {
    background: linear-gradient(135deg, rgba(20, 37, 71, 0.7) 0%, rgba(13, 31, 58, 0.85) 100%);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-xl);
    padding: 40px 36px;
    box-shadow: var(--shadow-lg), 0 0 80px rgba(59, 168, 255, 0.05), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-light), transparent);
    opacity: 0.5;
}

/* Logo */
.login-logo {
    width: 110px;
    height: 110px;
    margin: 0 auto 24px;
    border-radius: 50%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-logo img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    position: relative;
    z-index: 2;
    border: 2px solid var(--accent-light);
    background: var(--bg-deep);
}

.logo-glow {
    position: absolute;
    inset: -10px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
    animation: glowPulse 3s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { transform: scale(1); opacity: 0.7; }
    50% { transform: scale(1.15); opacity: 1; }
}

/* Titles */
.login-title {
    font-size: 28px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #ffffff 0%, var(--accent-bright) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.login-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 28px;
}

/* Tabs */
.login-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 28px;
    background: var(--bg-deep);
    padding: 6px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-soft);
}

.tab-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    transition: all var(--trans-fast);
}

.tab-btn svg {
    width: 16px;
    height: 16px;
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-light) 100%);
    color: var(--text-primary);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.tab-btn:not(.active):hover {
    color: var(--text-primary);
}

/* Forms */
.login-form {
    display: none;
    animation: fadeIn 0.4s ease;
}

.login-form.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.required {
    color: var(--accent-light);
}

.input-wrapper {
    position: relative;
    background: var(--bg-deep);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    transition: all var(--trans-fast);
    overflow: hidden;
}

.input-wrapper:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 4px var(--accent-soft);
}

.input-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-muted);
    pointer-events: none;
    transition: color var(--trans-fast);
}

.input-wrapper:focus-within .input-icon {
    color: var(--accent-light);
}

.input-wrapper input {
    width: 100%;
    padding: 14px 16px 14px 50px;
    font-size: 14px;
    color: var(--text-primary);
    background: transparent;
}

.input-wrapper input::placeholder {
    color: var(--text-dim);
}

.toggle-pwd {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    padding: 6px;
    color: var(--text-muted);
    transition: color var(--trans-fast);
}

.toggle-pwd:hover { color: var(--accent-light); }
.toggle-pwd svg { width: 18px; height: 18px; }

/* Submit Button */
.login-form .btn-primary {
    margin-top: 8px;
}

/* Saved Playlists */
.saved-playlists {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-soft);
}

.divider {
    text-align: center;
    margin-bottom: 16px;
    position: relative;
}

.divider span {
    color: var(--text-muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.saved-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 200px;
    overflow-y: auto;
}

.saved-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-deep);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--trans-fast);
}

.saved-item:hover {
    border-color: var(--accent-primary);
    background: var(--bg-light);
}

.saved-item-info {
    flex: 1;
    min-width: 0;
}

.saved-item-name {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.saved-item-type {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.saved-item-delete {
    padding: 6px;
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    transition: all var(--trans-fast);
}

.saved-item-delete:hover {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
}

.saved-item-delete svg {
    width: 16px;
    height: 16px;
}

/* Footer */
.login-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border-soft);
    color: var(--text-muted);
    font-size: 12px;
}

.login-footer .dot {
    margin: 0 8px;
    color: var(--accent-light);
}

/* Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 32px 24px;
    }
    .login-title {
        font-size: 24px;
    }
    .lang-switcher {
        top: 16px;
        right: 16px;
    }
}